Data Engineer
Helu.io · Remote · Posted September 1, 2026
- Who can apply
- Austria
Austria; Remote | Other Locations
- Pay
- Not stated in the posting
- How you’d be employed
- Employee
- Location in the posting
- Austria · Remote | Other Locations
- Skills required
- Python, SQL, AWS, ETL/ELT pipelines, Medallion Architecture, Dimensional data modeling, Data quality, Git, CI/CD
- Nice to have
- Polars
Analyzed from the full posting. Quotes are the posting’s own words.
From the posting
Your mission
We are looking for a Data Engineer who enjoys building reliable data pipelines. You will help design and operate scalable ELT processes that power analytics, reporting, and core product features.
You are comfortable working with Python, SQL and AWS, understand modern data architecture patterns, and care about data quality, performance, and maintainability.
Your responsibilities
- Design, build and maintain scalable ELT pipelines.
- Implement and operate data workflows using AWS (Lambda, Step Functions, S3, Batch, etc.).
- Contribute to the evolution of our Data Platform architecture (Medallion architecture).
- Ensure data quality, consistency, and reliability across pipelines.
- Optimize data transformations for performance and cost efficiency.
- Collaborate with Backend and Frontend Engineers and Product to define data requirements.
- Monitor pipelines, troubleshoot issues and improve observability.
- Document data models, transformations and architecture decisions.
Your skills
- Strong Python skills for data processing (ideally familiar with Polars or PySpark)..
- Experience building ETL/ELT pipelines in production environments.
- Solid experience with Cloud services - ideally AWS.
- Understanding of Medallion Architecture.
- Strong SQL skills and experience with dimensional data modeling.
- Experience working with structured and semi-structured data (JSON, CSV, Parquet, APIs).
- Understanding of data validation and data quality practices.
- Experience with Git and CI/CD.
Nice to have
- Experience with columnar databases (e.g. ClickHouse, Redshift, BigQuery).
- Familiarity with infrastructure-as-code (e.g. Terraform).
- Experience with Docker.
You can expect:
- Being part of a highly motivated international team.
- High ownership and responsibility for your domain.
- A modern data stack and room to shape architecture decisions.
- A workplace in the heart of Vienna or remote options with quarterly office weeks in Vienna Helu.io.
About Helu.io: what they hire for, how long positions stay open